It sounds like you could benefit from raising your handlebar. However, if you want a comfortable handlebar, check out the Nitto Noodle Mod. 177.
http://www.rivbike.com/product-p/hb1.htm
I have 46 cm Noodles on three of my bikes, and every road bike I have in the future will have a Noodle. The bar is wide, swept back, and has flat ramps. The flat ramps are what makes the difference.